3 years ago

Which statement about cell division is true?

Physics

1 answer:

Katarina [22]3 years ago

6 0

It's B. It divides only once is mitosis and twice in meiosis.

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Explain in detail what energy transfers happen when you cook sausages on a camp fire burning wood?

kotykmax [81]

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3 years ago

A pendulum consisting of a 0.5 kg mass tied to a 0.3 m string is set into oscillation at the same moment that a stone is dropped

lara31 [8.8K]

Answer:

2.72 cycles

Explanation:

First of all, let's find the time that the stone takes to reaches the ground. The stone moves by uniform accelerated motion with constant acceleration g=9.8 m/s^2, and it covers a distance of S=44.1 m, so the time taken is

$S=\frac{1}{2}at^2\\t=\sqrt{\frac{2S}{a}}=\sqrt{\frac{2(44.1m)}{9.8 m/s^2}}=3 s$

The period of the pendulum instead is given by:

$T=2 \pi \sqrt{\frac{L}{g}}=2 \pi \sqrt{\frac{0.3 m}{9.8 m/s^2}}=1.10 s$

Therefore, the number of oscillations that the pendulum goes through before the stone hits the ground is given by the time the stone takes to hit the ground divided by the period of the pendulum:

$N=\frac{t}{T}=\frac{3 s}{1.10 s}=2.72$

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3 years ago

10x2poooop11111111qq64

yulyashka [42]

Answer:

10×2=20

10×2÷64=??

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2 years ago

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If vector A ⃗ has components A x and A y and makes an angle θ with the +x axis, then

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Then the tangent of angle-Θ is (Ay / Ax).

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3 years ago

What is the difference between tangential acceleration and centripetal acceleration?

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Centripetal acceleration is directed along a radius so it may also be called the radial acceleration. If the speed is not constant, then there is also a tangential acceleration (at). The tangential acceleration is, indeed, tangent to the path of the particle's motion.

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3 years ago